Answer:
sexually transmitted disease
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The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
Answer:
your questions is not exactly sure but make sure your questions
Answer:
Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.
Explanation:
Answer:
B
Explanation:
organ system is two or more organs working together to perform a specialized function.
